Changes for page LHT52 - LoRaWAN Temperature & Humidity Sensor User Manual
Last modified by Mengting Qiu on 2024/04/30 14:27
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... ... @@ -78,6 +78,7 @@ 78 78 * Datalog feature 79 79 80 80 81 + 81 81 (% _mstvisible="1" %) 82 82 == (% _msthash="323570" _msttexthash="297635" _mstvisible="3" %)1.3 Specification(%%) == 83 83 ... ... @@ -276,6 +276,7 @@ 276 276 [[image:image-20220522233118-7.png||_mstalt="430430" _mstvisible="3"]] 277 277 278 278 280 + 279 279 (% _mstvisible="1" %) 280 280 === (% _msthash="3537456" _msttexthash="3448549" _mstvisible="3" %)2.3.2 Step 2: Activate LHT65N by pressing the ACT button for more than 5 seconds.(%%) === 281 281 ... ... @@ -286,6 +286,7 @@ 286 286 [[image:image-20220522233300-8.png||_mstalt="428389" _mstvisible="3" height="219" width="722"]] 287 287 288 288 291 + 289 289 (% _mstvisible="1" %) 290 290 == (% _msthash="320879" _msttexthash="294970" _mstvisible="3" %)2.4 Uplink Payload(%%) == 291 291 ... ... @@ -431,6 +431,7 @@ 431 431 * Humidity: 0x025C/10=60.4% 432 432 433 433 437 + 434 434 (% _mstvisible="1" %) 435 435 === (% _msthash="116532" _msttexthash="87958" _mstvisible="3" %)2.4.5 Ext #(%%) === 436 436 ... ... @@ -557,7 +557,6 @@ 557 557 ))) 558 558 ))) 559 559 560 - 561 561 (% _mstvisible="1" %) 562 562 * (% _msthash="2539669" _msttexthash="857922" _mstvisible="3" %)**Battery status & **(% class="wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink wikiinternallink" %)**Built-in Humidity** 563 563 ... ... @@ -588,7 +588,6 @@ 588 588 589 589 ))) 590 590 591 - 592 592 (% _mstvisible="1" %) 593 593 * (% _msthash="504956" _msttexthash="245037" _mstvisible="4" %)**Status & Ext Byte** 594 594 ... ... @@ -917,7 +917,6 @@ 917 917 ))) 918 918 ))) 919 919 920 - 921 921 (% _mstvisible="1" %) 922 922 (% _msthash="315268" _msttexthash="390390" _mstvisible="3" %)**Poll message flag & Ext** 923 923 ... ... @@ -1142,9 +1142,6 @@ 1142 1142 For each success downlink, the PURPLE LED will blink once 1143 1143 ))) 1144 1144 1145 - 1146 - 1147 - 1148 1148 (% _mstvisible="1" style="text-align: left;" %) 1149 1149 == (% _msthash="112034" _msttexthash="277511" _mstvisible="3" %)2.9 installation(%%) == 1150 1150 ... ... @@ -1174,7 +1174,6 @@ 1174 1174 * Working voltage 2.35v ~~ 5v 1175 1175 1176 1176 1177 - 1178 1178 (% _mstvisible="1" style="text-align: left;" %) 1179 1179 = (% _msthash="1940107" _msttexthash="1714063" _mstvisible="3" %)4. Configure LHT65N via AT command or LoRaWAN downlink(%%) = 1180 1180 ... ... @@ -1266,7 +1266,7 @@ 1266 1266 Feature: Change LoRaWAN End Node Transmit Interval. 1267 1267 1268 1268 (% _mstvisible="1" style="text-align: left;" %) 1269 -(% _msthash="315356" _msttexthash="241696" _mstvisible="3"%)**AT Command: AT+TDC**1266 +(% style="color:#4f81bd" %)**AT Command: AT+TDC** 1270 1270 1271 1271 (% _mstvisible="1" %) 1272 1272 [[image:image-20220523150701-2.png||_mstalt="427453" _mstvisible="3"]] ... ... @@ -1277,7 +1277,7 @@ 1277 1277 1278 1278 1279 1279 (% _mstvisible="2" style="text-align: left;" %) 1280 -(% _msthash="506255" _msttexthash="381992" _mstvisible="4"%)**Downlink Command: 0x01**1277 +(% style="color:#4f81bd" %)**Downlink Command: 0x01** 1281 1281 ))) 1282 1282 1283 1283 (% _mstvisible="1" %) ... ... @@ -1315,7 +1315,7 @@ 1315 1315 Feature: Change External Sensor Mode. 1316 1316 1317 1317 (% _mstvisible="1" style="text-align: left;" %) 1318 -(% _msthash="315358" _msttexthash="248118" _mstvisible="3"%)**AT Command: AT+EXT**1315 +(% style="color:#4f81bd" %)**AT Command: AT+EXT** 1319 1319 1320 1320 (% _mstvisible="1" %) 1321 1321 [[image:image-20220523150759-3.png||_mstalt="432146" _mstvisible="3"]] ... ... @@ -1326,7 +1326,7 @@ 1326 1326 1327 1327 1328 1328 (% _mstvisible="2" style="text-align: left;" %) 1329 -(% _msthash="506258" _msttexthash="387855" _mstvisible="4"%)**Downlink Command: 0xA2**1326 +(% style="color:#4f81bd" %)**Downlink Command: 0xA2** 1330 1330 ))) 1331 1331 1332 1332 (% _mstvisible="1" %) ... ... @@ -1376,13 +1376,14 @@ 1376 1376 PID is default set to disable (0) 1377 1377 1378 1378 (% _mstvisible="1" style="text-align: left;" %) 1379 -(% _msthash="315361" _msttexthash="137488" _mstvisible="3"%)**AT Command:**1376 +(% style="color:#4f81bd" %)**AT Command:** 1380 1380 1381 1381 (% _mstvisible="1" %) 1382 1382 [[image:image-20220523150928-4.png||_mstalt="431821" _mstvisible="3"]] 1383 1383 1381 + 1384 1384 (% _mstvisible="1" style="text-align: left;" %) 1385 -(% _msthash="315362" _msttexthash="298038" _mstvisible="3"%)**Downlink Command:**1383 +(% style="color:#4f81bd" %)**Downlink Command:** 1386 1386 1387 1387 (% _mstvisible="1" %) 1388 1388 * 0xA800 **~-~->** AT+PID=0 ... ... @@ -1389,7 +1389,6 @@ 1389 1389 * 0xA801 **~-~->** AT+PID=1 1390 1390 1391 1391 1392 - 1393 1393 (% _mstvisible="1" style="text-align: left;" %) 1394 1394 == (% _msthash="266344" _msttexthash="242879" _mstvisible="3" %)4.4 Set Password(%%) == 1395 1395 ... ... @@ -1397,7 +1397,7 @@ 1397 1397 Feature: Set device password, max 9 digits 1398 1398 1399 1399 (% _mstvisible="1" style="text-align: left;" %) 1400 -(% _msthash="315364" _msttexthash="295009" _mstvisible="3"%)**AT Command: AT+PWORD**1397 +(% style="color:#4f81bd" %)**AT Command: AT+PWORD** 1401 1401 1402 1402 (% _mstvisible="1" %) 1403 1403 [[image:image-20220523151052-5.png||_mstalt="428623" _mstvisible="3"]] ... ... @@ -1408,7 +1408,7 @@ 1408 1408 1409 1409 1410 1410 (% _mstvisible="2" style="text-align: left;" %) 1411 -(% _msthash="506261" _msttexthash="298038" _mstvisible="4"%)**Downlink Command:**1408 +(% style="color:#4f81bd" %)**Downlink Command:** 1412 1412 ))) 1413 1413 1414 1414 (% _mstvisible="1" %) ... ... @@ -1427,7 +1427,7 @@ 1427 1427 Feature: Quit AT Command mode, so user needs to input password again before use AT Commands. 1428 1428 1429 1429 (% _mstvisible="1" style="text-align: left;" %) 1430 -(% _msthash="315366" _msttexthash="289120" _mstvisible="3"%)**AT Command: AT+DISAT**1427 +(% style="color:#4f81bd" %)**AT Command: AT+DISAT** 1431 1431 1432 1432 (% _mstvisible="1" %) 1433 1433 [[image:image-20220523151132-6.png||_mstalt="428649" _mstvisible="3"]] ... ... @@ -1434,7 +1434,7 @@ 1434 1434 1435 1435 1436 1436 (% _mstvisible="1" style="text-align: left;" %) 1437 -(% _msthash="315367" _msttexthash="298038" _mstvisible="3"%)**Downlink Command:**1434 +(% style="color:#4f81bd" %)**Downlink Command:** 1438 1438 1439 1439 (% _msthash="315368" _msttexthash="974311" _mstvisible="1" style="text-align: left;" %) 1440 1440 No downlink command for this feature. ... ... @@ -1447,7 +1447,7 @@ 1447 1447 Feature: Set device to sleep mode 1448 1448 1449 1449 (% _mstvisible="1" style="text-align: left;" %) 1450 -(% _msthash="315370" _msttexthash="289783" _mstvisible="3"%)**AT Command: AT+SLEEP**1447 +(% style="color:#4f81bd" %)**AT Command: AT+SLEEP** 1451 1451 1452 1452 (% _mstvisible="1" %) 1453 1453 [[image:image-20220523151218-7.png||_mstalt="430703" _mstvisible="3"]] ... ... @@ -1454,13 +1454,12 @@ 1454 1454 1455 1455 1456 1456 (% _mstvisible="1" %) 1457 -(% _msthash="315371" _msttexthash="298038" _mstvisible="3"%)**Downlink Command:**1454 +(% style="color:#4f81bd" %)**Downlink Command:** 1458 1458 1459 1459 (% _mstvisible="1" %) 1460 1460 * There is no downlink command to set to Sleep mode. 1461 1461 1462 1462 1463 - 1464 1464 (% _mstvisible="1" %) 1465 1465 == (% _msthash="336557" _msttexthash="309712" _mstvisible="3" %)4.7 Set system time(%%) == 1466 1466 ... ... @@ -1468,17 +1468,19 @@ 1468 1468 Feature: Set system time, unix format. [[See here for format detail.>>||anchor="H2.6.2UnixTimeStamp"]] 1469 1469 1470 1470 (% _mstvisible="1" %) 1471 -(% _msthash="315373" _msttexthash="137488" _mstvisible="3"%)**AT Command:**1467 +(% style="color:#4f81bd" %)**AT Command:** 1472 1472 1473 1473 (% _mstvisible="1" %) 1474 1474 [[image:image-20220523151253-8.png||_mstalt="430677" _mstvisible="3"]] 1475 1475 1472 + 1476 1476 (% _mstvisible="1" %) 1477 -(% _msthash="315374" _msttexthash="298038" _mstvisible="3"%)**Downlink Command:**1474 +(% style="color:#4f81bd" %)**Downlink Command:** 1478 1478 1479 1479 (% _msthash="315375" _msttexthash="2898571" _mstvisible="1" %) 1480 1480 0x306007806000 ~/~/ Set timestamp to 0x(6007806000),Same as AT+TIMESTAMP=1611104352 1481 1481 1479 + 1482 1482 (% _mstvisible="1" %) 1483 1483 == (% _msthash="376779" _msttexthash="348712" _mstvisible="3" %)4.8 Set Time Sync Mode(%%) == 1484 1484 ... ... @@ -1497,14 +1497,15 @@ 1497 1497 (% _mstvisible="1" %) 1498 1498 ((( 1499 1499 (% _mstvisible="2" %) 1500 -(% _msthash="506265" _msttexthash="137488" _mstvisible="4"%)**AT Command:**1498 +(% style="color:#4f81bd" %)**AT Command:** 1501 1501 ))) 1502 1502 1503 1503 (% _mstvisible="1" %) 1504 1504 [[image:image-20220523151336-9.png||_mstalt="431717" _mstvisible="3"]] 1505 1505 1504 + 1506 1506 (% _mstvisible="1" %) 1507 -(% _msthash="315376" _msttexthash="298038" _mstvisible="3"%)**Downlink Command:**1506 +(% style="color:#4f81bd" %)**Downlink Command:** 1508 1508 1509 1509 (% _msthash="315377" _msttexthash="479648" _mstvisible="1" %) 1510 1510 0x28 01 ~/~/ Same As AT+SYNCMOD=1 ... ... @@ -1512,6 +1512,7 @@ 1512 1512 (% _msthash="315378" _msttexthash="479076" _mstvisible="1" %) 1513 1513 0x28 00 ~/~/ Same As AT+SYNCMOD=0 1514 1514 1514 + 1515 1515 (% _mstvisible="1" %) 1516 1516 == (% _msthash="536432" _msttexthash="502528" _mstvisible="3" %)4.9 Set Time Sync Interval(%%) == 1517 1517 ... ... @@ -1519,17 +1519,19 @@ 1519 1519 Feature: Define System time sync interval. SYNCTDC default value: 10 days. 1520 1520 1521 1521 (% _mstvisible="1" %) 1522 -(% _msthash="315380" _msttexthash="137488" _mstvisible="3"%)**AT Command:**1522 +(% style="color:#4f81bd" %)**AT Command:** 1523 1523 1524 1524 (% _mstvisible="1" %) 1525 1525 [[image:image-20220523151411-10.png||_mstalt="449696" _mstvisible="3"]] 1526 1526 1527 + 1527 1527 (% _mstvisible="1" %) 1528 -(% _msthash="315381" _msttexthash="298038" _mstvisible="3"%)**Downlink Command:**1529 +(% style="color:#4f81bd" %)**Downlink Command:** 1529 1529 1530 1530 (% _msthash="315382" _msttexthash="590044" _mstvisible="1" %) 1531 1531 0x29 0A ~/~/ Same as AT+SYNCTDC=0x0A 1532 1532 1534 + 1533 1533 (% _mstvisible="1" %) 1534 1534 == (% _msthash="927901" _msttexthash="882570" _mstvisible="3" %)4.10 Print data entries base on page.(%%) == 1535 1535 ... ... @@ -1537,17 +1537,19 @@ 1537 1537 Feature: Print the sector data from start page to stop page (max is 416 pages). 1538 1538 1539 1539 (% _mstvisible="1" %) 1540 -(% _msthash="315384" _msttexthash="264953" _mstvisible="3"%)**AT Command: AT+PDTA**1542 +(% style="color:#4f81bd" %)**AT Command: AT+PDTA** 1541 1541 1542 1542 (% _mstvisible="1" %) 1543 1543 [[image:image-20220523151450-11.png||_mstalt="451035" _mstvisible="3"]] 1544 1544 1547 + 1545 1545 (% _mstvisible="1" %) 1546 -(% _msthash="315385" _msttexthash="298038" _mstvisible="3"%)**Downlink Command:**1549 +(% style="color:#4f81bd" %)**Downlink Command:** 1547 1547 1548 1548 (% _msthash="315386" _msttexthash="799539" _mstvisible="1" %) 1549 1549 No downlink commands for feature 1550 1550 1554 + 1551 1551 (% _mstvisible="1" %) 1552 1552 == (% _msthash="788762" _msttexthash="747149" _mstvisible="3" %)4.11 Print last few data entries.(%%) == 1553 1553 ... ... @@ -1555,17 +1555,19 @@ 1555 1555 Feature: Print the last few data entries 1556 1556 1557 1557 (% _mstvisible="1" %) 1558 -(% _msthash="315388" _msttexthash="288522" _mstvisible="3"%)**AT Command: AT+PLDTA**1562 +(% style="color:#4f81bd" %)**AT Command: AT+PLDTA** 1559 1559 1560 1560 (% _mstvisible="1" %) 1561 1561 [[image:image-20220523151524-12.png||_mstalt="452101" _mstvisible="3"]] 1562 1562 1567 + 1563 1563 (% _mstvisible="1" %) 1564 -(% _msthash="315389" _msttexthash="298038" _mstvisible="3"%)**Downlink Command:**1569 +(% style="color:#4f81bd" %)**Downlink Command:** 1565 1565 1566 1566 (% _msthash="315390" _msttexthash="799539" _mstvisible="1" %) 1567 1567 No downlink commands for feature 1568 1568 1574 + 1569 1569 (% _mstvisible="1" %) 1570 1570 == (% _msthash="437814" _msttexthash="408057" _mstvisible="3" %)4.12 Clear Flash Record(%%) == 1571 1571 ... ... @@ -1573,17 +1573,19 @@ 1573 1573 Feature: Clear flash storage for data log feature. 1574 1574 1575 1575 (% _mstvisible="1" %) 1576 -(% _msthash="315392" _msttexthash="311415" _mstvisible="3"%)**AT Command: AT+CLRDTA**1582 +(% style="color:#4f81bd" %)**AT Command: AT+CLRDTA** 1577 1577 1578 1578 (% _mstvisible="1" %) 1579 1579 [[image:image-20220523151556-13.png||_mstalt="454129" _mstvisible="3"]] 1580 1580 1587 + 1581 1581 (% _mstvisible="1" %) 1582 -(% _msthash="315393" _msttexthash="388193" _mstvisible="3"%)**Downlink Command: 0xA3**1589 +(% style="color:#4f81bd" %)**Downlink Command: 0xA3** 1583 1583 1584 1584 (% _mstvisible="1" %) 1585 1585 * Example: 0xA301 ~/~/Same as AT+CLRDTA 1586 1586 1594 + 1587 1587 (% _mstvisible="1" %) 1588 1588 == (% _msthash="740532" _msttexthash="701363" _mstvisible="3" %)4.13 Auto Send None-ACK messages(%%) == 1589 1589 ... ... @@ -1592,7 +1592,7 @@ 1592 1592 1593 1593 1594 1594 (% _mstvisible="1" %) 1595 -(% _msthash="315395" _msttexthash="334256" _mstvisible="3"%)**AT Command: AT+PNACKMD**1603 +(% style="color:#4f81bd" %)**AT Command: AT+PNACKMD** 1596 1596 1597 1597 (% _msthash="315396" _msttexthash="734682" _mstvisible="1" %) 1598 1598 The default factory setting is 0 ... ... @@ -1602,11 +1602,12 @@ 1602 1602 (% _mstvisible="3" %)|(% _msthash="1231321" _msttexthash="130455" _mstvisible="4" style="width:171px" %)AT+PNACKMD=1|(% _msthash="1231322" _msttexthash="377026" _mstvisible="4" style="width:219px" %)Poll None-ACK message|(% _msthash="1231323" _msttexthash="14989" _mstvisible="4" style="width:119px" %)OK 1603 1603 1604 1604 (% _mstvisible="1" %) 1605 -(% _msthash="315397" _msttexthash="383981" _mstvisible="3"%)**Downlink Command: 0x34**1613 +(% style="color:#4f81bd" %)**Downlink Command: 0x34** 1606 1606 1607 1607 (% _mstvisible="1" %) 1608 1608 * Example: 0x3401 ~/~/Same as AT+PNACKMD=1 1609 1609 1618 + 1610 1610 (% _mstvisible="1" %) 1611 1611 = (% _msthash="568737" _msttexthash="502827" _mstvisible="3" %)5. Battery & How to replace(%%) = 1612 1612 ... ... @@ -1645,11 +1645,18 @@ 1645 1645 (% _mstvisible="1" %) 1646 1646 ((( 1647 1647 (% _msthash="506266" _msttexthash="35479028" _mstvisible="2" %) 1657 +((( 1648 1648 Dragino battery-powered products are all run in Low Power mode. User can check the guideline from this link to calculate the estimated battery life: 1649 1649 [[https:~~/~~/www.dragino.com/downloads/downloads/LoRa_End_Node/Battery_Analyze/DRAGINO_Battery_Life_Guide.pdf>>https://www.dragino.com/downloads/downloads/LoRa_End_Node/Battery_Analyze/DRAGINO_Battery_Life_Guide.pdf]] 1660 +))) 1650 1650 1662 +((( 1663 + 1664 +))) 1651 1651 1666 +((( 1652 1652 A full detail test report for LHT65N on different frequency can be found at : [[https:~~/~~/www.dropbox.com/sh/r2i3zlhsyrpavla/AAB1sZw3mdT0K7XjpHCITt13a?dl=0>>https://www.dropbox.com/sh/r2i3zlhsyrpavla/AAB1sZw3mdT0K7XjpHCITt13a?dl=0]] 1668 +))) 1653 1653 1654 1654 1655 1655 (% _msthash="506266" _msttexthash="35479028" _mstvisible="2" %) ... ... @@ -1658,34 +1658,31 @@ 1658 1658 (% _msthash="506266" _msttexthash="35479028" _mstvisible="2" %) 1659 1659 == 6.1 How to use AT Command? == 1660 1660 1661 -LHT65N supports AT Command set.User can use a USB to TTL adapter plus the Program Cable to 1677 +((( 1678 +LHT65N supports AT Command set.User can use a USB to TTL adapter plus the Program Cable to connect to LHT65 for using AT command, as below. 1679 +))) 1662 1662 1663 -connect to LHT65 for using AT command, as below. 1664 - 1665 1665 [[image:image-20220530085651-1.png]] 1666 1666 1667 1667 1668 -Connection: 1684 +**Connection:** 1669 1669 1670 -✓ 1686 +✓** USB to TTL GND <~-~->GND** 1671 1671 1672 -✓ USB to TTL RXD <~-~-> D+ 1688 +**✓ USB to TTL RXD <~-~-> D+** 1673 1673 1674 -✓ USB to TTL TXD <~-~-> A11 1690 +**✓ USB to TTL TXD <~-~-> A11** 1675 1675 1676 -✓ USB to TTL 3.3V <~-~-> D- 1692 +**✓ USB to TTL 3.3V <~-~-> D-** 1677 1677 1678 -In PC, User needs to set serial tool(such as **putty**, SecureCRT) baud rate to **9600** to access to 1679 1679 1680 -access serial console for LHT65N. The AT commands are disable by default and need to enter 1695 +((( 1696 +In PC, User needs to set serial tool(such as **putty**, SecureCRT) baud rate to **9600** to access to access serial console for LHT65N. The AT commands are disable by default and need to enter password (default:**123456**) to active it. Timeout to input AT Command is 5 min, after 5-minute, user need to input password again. User can use AT+DISAT command to disable AT command before timeout. 1697 +))) 1681 1681 1682 -password (default:**123456**) to active it. Timeout to input AT Command is 5 min, after 5-minute, 1683 - 1684 -user need to input password again. User can use AT+DISAT command to disable AT command 1685 - 1686 -before timeout. 1687 - 1699 +((( 1688 1688 Input password and ATZ to activate LHT65N,As shown below: 1701 +))) 1689 1689 1690 1690 [[image:image-20220530095701-4.png]] 1691 1691 ... ... @@ -1736,14 +1736,10 @@ 1736 1736 1737 1737 AT+RX2DL: Get or Set the delay between the end of the Tx and the Rx Window 2 in ms 1738 1738 1739 -AT+JN1DL: Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 1 1752 +AT+JN1DL: Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 1 in ms 1740 1740 1741 -in ms 1754 +AT+JN2DL: Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 2 in ms 1742 1742 1743 -AT+JN2DL: Get or Set the Join Accept Delay between the end of the Tx and the Join Rx Window 2 1744 - 1745 -in ms 1746 - 1747 1747 AT+NJM: Get or Set the Network Join Mode. (0: ABP, 1: OTAA) 1748 1748 1749 1749 AT+NWKID: Get or Set the Network ID ... ... @@ -1907,6 +1907,9 @@ 1907 1907 (% _mstvisible="1" %) 1908 1908 ((( 1909 1909 (% _msthash="506270" _msttexthash="295386" _mstvisible="2" %) 1919 + 1920 + 1921 +(% _msthash="506270" _msttexthash="295386" _mstvisible="2" %) 1910 1910 (% _mstvisible="3" %)**Package Includes**(%%): 1911 1911 ))) 1912 1912 ... ... @@ -1953,6 +1953,10 @@ 1953 1953 ((( 1954 1954 (% _msthash="903342" _msttexthash="227084" _mstvisible="4" %) 1955 1955 Weight / pcs : 170g 1968 + 1969 + 1970 +(% _msthash="903342" _msttexthash="227084" _mstvisible="4" %) 1971 + 1956 1956 ))) 1957 1957 1958 1958 = 9. Reference = ... ... @@ -1959,6 +1959,9 @@ 1959 1959 1960 1960 * [[Datasheet, Photos, Decoder, Firmware>>https://www.dropbox.com/home/Products_Public_Document/LoRaWAN%20End%20Node/LHT65N%20Temperature%20%26%20Humidity%20Sensor]] 1961 1961 1978 + 1979 + 1980 + 1962 1962 = 10. FCC Warning = 1963 1963 1964 1964 (% _mstvisible="1" %)